Climatic Effects Due to Halogenated Compounds in the Earth’s Atmosphere
Climatic Effects Due to Halogenated Compounds in the Earth’s Atmosphere
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DOI：
10.1175/1520-0469(1980)037
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发表时间：
1980-02
影响因子：
3.1
通讯作者：
Wei‐Chyung Wang;J. Pinto;Y. Yung
中科院分区：
文献类型：
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作者：
Wei‐Chyung Wang;J. Pinto;Y. Yung
利用一维辐射对流模式，我们进行了平流层臭氧消耗对地面温度影响的敏感性研究。由于氯氟甲烷在稳定状态下引起的臭氧消耗（假设1973年的释放速率），可能会使表面温度降低约0.2 K。由于氯氟甲烷的存在，这种冷却显著降低了温室效应。四氟化碳在7.8 μm处有很强的ν_3带，在考虑和不考虑与CH_4和N_2O带重叠的情况下，其大气温室效应分别为0.07和0.12 K（ppbv）^（-1）。当浓度高于1 ppbv时，ν_3波段的吸收开始饱和，温室效应减弱。
Using a one-dimensional radiative-convective model, we perform a sensitivity study of the effect of ozone depletion in the stratosphere on the surface temperature. There could be a cooling of the surface temperature by ~0.2 K due to chlorofluoromethane-induced ozone depletion at steady state (assuming 1973 release rates). This cooling reduces significantly the greenhouse effect due to the presence of chlorofluoromethanes. Carbon tetrafluoride has a strong ν_3 band at 7.8 μm, and the atmospheric greenhouse effect is shown to be 0.07 and 0.12 K (ppbv)^(−1) with and without taking into account overlap with CH_4 and N_2O bands. At concentration higher than 1 ppbv, absorption by the ν_3 band starts to saturate and the greenhouse effect becomes less efficient.